How can a heart that "is deceitful above all things, and desperately wicked" (Jeremiah 17:9) be the heart with which "one believes unto righteousness" (Romans 10:10)? How can the tongue that is "a fire, a world of iniquity" and "is so set among our members that it defiles the whole body" (James 3:6) be the tongue that is set within the mouth by which "confession is made unto salvation" (Romans 10:10)? This series answers these vital questions.